The revised Bristol Rheumatoid Arthritis Fatigue measures and the Rheumatoid Arthritis Impact of Disease scale: validation in six countries

Hewlett S, Kirwan J, Bode C, Cramp F, Carmona L, Dures E, Englbrecht M, Fransen J, Greenwood R, Hagel S, Van De Laar M, Molto A, Nicklin J, Petersson IF, Redondo M, Schett G, Gossec L (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Rheumatology Oxford University Press

DOI: 10.1093/rheumatology/kex370

Abstract

To evaluate the Bristol Rheumatoid Arthritis Fatigue Multidimensional Questionnaire (BRAF-MDQ), the revised Bristol Rheumatoid Arthritis Numerical Rating Scales (BRAF-NRS V2) and the Rheumatoid Arthritis Impact of Disease (RAID) scale in six countries.We surveyed RA patients in France, Germany, The Netherlands, Spain, Sweden and the UK, including the HAQ, 36-item Short Form Health Survey (SF-36) and potential revisions of the BRAF-NRS coping and Spanish RAID coping items. Factor structure and internal consistency were examined by factor analysis and Cronbach's ? and construct validity by Spearman's correlation.A total of 1276 patients participated (76% female, 25% with a disease duration <5 years, median HAQ 1.0). The original BRAF-MDQ four-factor structure and RAID single-factor structure were confirmed in every country with ?66% of variation in items explained by each factor and all item factor loadings of 0.71-0.98. Internal consistency for the BRAF-MDQ total and subscales was a Cronbach's ? of 0.75-0.96 and for RAID, 0.93-0.96. Fatigue construct validity was shown for the BRAF-MDQ and BRAF-NRS severity and effect scales, correlated internally with SF-36 vitality and with RAID fatigue (r = 0.63-0.93). Broader construct validity for the BRAFs and RAID was shown by correlation with each other, HAQ and SF-36 domains (r = 0.46-0.82), with similar patterns in individual countries. The revised BRAF-NRS V2 Coping item had stronger validity than the original in all analyses. The revised Spanish RAID coping item performed as well as the original.Across six European countries, the BRAF-MDQ identifies the same four aspects of fatigue, and along with the RAID, shows strong factor structure and internal consistency and moderate-good construct validity. The revised BRAF-NRS V2 shows improved construct validity and replaces the original.

Authors with CRIS profile

Matthias Englbrecht Lehrstuhl für Innere Medizin III Georg Schett Lehrstuhl für Innere Medizin III

Involved external institutions

Universidad Camilo José Cela (UCJC) ES Spain (ES) Lund University / Lunds universitet SE Sweden (SE) University Hospitals Bristol NHS Foundation Trust GB United Kingdom (GB) University of Paris 5 - René Descartes / Université Paris V René Descartes FR France (FR) University of Twente NL Netherlands (NL) Radboud University Nijmegen NL Netherlands (NL) University of the West of England (UWE Bristol) GB United Kingdom (GB) Instituto de Salud Musculoesquelética (InMusc) ES Spain (ES) University of Paris 6 - Pierre et Marie Curie / Université Paris VI Pierre et Marie Curie (UPMC) FR France (FR) University of Bristol GB United Kingdom (GB)

How to cite

APA:

Hewlett, S., Kirwan, J., Bode, C., Cramp, F., Carmona, L., Dures, E.,... Gossec, L. (2017). The revised Bristol Rheumatoid Arthritis Fatigue measures and the Rheumatoid Arthritis Impact of Disease scale: validation in six countries. Rheumatology. https://doi.org/10.1093/rheumatology/kex370

MLA:

Hewlett, Sarah, et al. "The revised Bristol Rheumatoid Arthritis Fatigue measures and the Rheumatoid Arthritis Impact of Disease scale: validation in six countries." Rheumatology (2017).

BibTeX: Download